Machine for hulling and scouring grain



T. F. WAGONER.

Hulling Machine.

Patented 'June 28, 1859.

UNITED STATES PATENT OFFICE.

THOMAS F. VAGANER, OF TRENTON, NEWV JERSEY.

MACHINE FOR HULLING AND SCOURING GRAIN.

Specification of Letters Patent No. 24,595, dated June 28, 1859.

To all whom it may concern:

Be it known that I, THOMAS F. WVAGANER, of the city of Trenton, in the county of Mercer and State of New Jersey, have invented a new and useful Improvement in the Rubbers of Machines for Hulling and Scouring Grain, Seed, &c.; and I do hereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, reference being had to the annexed drawings, making part of this specification, in which Figure 1 represents a perspective view of the ordinary mill to which my improvement may be applied. Fig. 2 is a transverse section of the same, together with a section of the runner or upper rubber.

The same letters of reference marked thereon indicate similar parts.

Thus A, B, are the posts, or uprights of the husk.

C, D represents the top covering or husk floor.

E, F is the bed stone or lower rubber.

G, H, I, J in Fig. 2, represents a section of the runner or upper rubber.

M, N, 0 indicates the hoop, or outer casing, usually placed over both the rubbers when the machine is in operation.

P, Q, R represents the spindle upon which the runner, or upper rubber, hangs; and by which it is carried around, over the bed stone or lower rubber.

S, T is the driving pulley, or gear wheel.

R represents the step in which the lower end of the spindle turns.

U, V, WV is the eye of the runner or upper rubber, through which the grain passes from the hopper, down between the rubbers.

X, Y shows the spout through which the grain, or seed, is discharged from the rubbers, after it has been hulled or scoured.

The rubbers of machines in present use are either of stone or iron, or some other hard unyielding substance, and therefore not adapted to the hulling, or scouring of grain or seed, without in a great degree breaking, grinding or otherwise injuring the grain in its passage between them during the operation. To obviate this defect I propose to construct the rubbing surface of the rubber of india-rubber, gutta percha, or any other elastic substance at present known and suitable for this purpose. The india rubber and gutta percha may be combined together, and manufactured and vulcanized as the same is sold in the market.

In Fig. 2, G, H, K, L represents a section of the lower portion of the runner, which I propose to make of the elastic substances above mentioned. I do not wish to confine myself to the application of this elastic material to one rubber only, but in certain cases may prefer to have both the rubbers coated with this material. lVhat I prefer however for general use in the application of the elastic material to the upper runner or rubber, in connection with a bed stone for the lower rubber.

The operation of the machine being similar to all other mills for hulling and scouring can be readily understood by those conversant with these subjects. The advantages of the rubber, as above described, over the ordinary hard surfaced rubbers, consists in its elasticity; by which any kind of grain may be passed through, or under it, and hulled or scoured, without grinding the same, or in any way injuring the grain. In the hulling and scouring processes, the elasticity of the rubber may be so regulated, to the various kinds of grain, or seed, to be operated upon, that should the grains be caught endwise between the rubbers in the operation, they would be enabled to turn over, and pass through, without breaking the grain or materially injuring the same.

It will be understood that my improvement in the construction of rubbers consists in using the surface of the elastic material directly in contact with the grain, or work to be performed, without being covered or coated with any hard unyielding material.

I am aware that india rubber has been used in combination with a hard surface for the purpose of hulling grain, when the said rubber has been placed upon cylinders or in conical vessels. Hence I do not wish to lay a claim broadly to such a combination, nor do I wish to claim the combination of an elastic surface With a hard surface, when having a circular motion for the purpose of a the planes of said surfaces are placed out of hulling and scouring grain substantially as 10 a plane With the horizon, but

What I do claim is- 5 The combination of two surfaces, one of THOMAS WAGANER' which is elastic and the other hard, when Witnesses: H the planes of said surfaces are placed on a JAMES YATES, plane With the horizon, and one of them WILLIAM EooLEs.

set forth. 

